ENGINES & EQUIPMENT

Engines and construction equipment are all complex machines. How do some of these engines work, and how do they help us construct buildings and structures?
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How Steam Shovels Work

Antique steam shovels can still be found rusting away at old mining sites or painstakingly restored and on display in museums the world over. How much do you know about these mammoth-sized digging tools?

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  • How do torpedo engines work under water?

    How do torpedo engines work under water?

    Since a torpedo cannot have an air-breathing engine like a boat, how is it propelled through the water? See more »

  • How does a catapult work?

    How does a catapult work?

    It doesn't seem like twisted rope and wooden gears or levers would be able to produce the force and speed needed to launch heavy loads a great distance. See more »

  • How does a hydraulic ram pump work?

    How does a hydraulic ram pump work?

    When I was a kid, my Aunt had constantly flowing water from a natural spring down the hill. She said the water was pumped uphill using a hydraulic ram. This device ran constantly and didn't need any electricity! What is a hydraulic ram and how does i See more »

  • How does a water cannon work?

    How does a water cannon work?

    Before water cannons, firefighters hauled bucket after bucket of water to squelch flames. So why are law enforcement officials grateful for them? See more »

  • How does a water-cooled air conditioner work?

    How does a water-cooled air conditioner work?

    Water-cooled air conditioners work in a different way than standard air conditioners that chill the air with a compressor. If water-cooler air conditioners don't use a compressor, then how do they cool the air? Find out the answer in this article. See more »

  • How Hydraulic Cranes Work

    How Hydraulic Cranes Work

    Hydraulic cranes perform seemingly impossible tasks, lifting 70-ton objects with absolute ease. See the simple design behind the Herculean results. See more »

  • What force causes a 3-pole motor to spin one way and not the other?

    What force causes a 3-pole motor to spin one way and not the other?

    There is a force that causes a 3-pole motor to spin in one direction and not the other. What exactly is this force and how does it prevent the motor from spinning in another direction. Find out the answer to this question in this article from HowStuffWorks. See more »

  • What's the Segway recall about?

    What's the Segway recall about?

    Segway Inc. announced on Thursday that it's recalling all of the scooters it has sold since the Segway went on the market in 2002. See more »

  • Where should I sit to get the best ride on a roller coaster?

    Where should I sit to get the best ride on a roller coaster?

    You've waited in line, and now it's time to board the roller coaster for the thrill ride of your life. If you're lucky enough to get to pick your seat, which car should you choose for the best ride experience? See more »

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